Lock for baby-carriage backs



Nov. l2, 1929. E. sPr-:cTER

LOCK FOR BABY CARRIAGE BAGKS Filed June l. 1927 T 1 5:4 T1 E: 5 F 25 I g2 gvwnzntoz Patented Nov. 12, 1929 UNITED ySTATES PATENT OFFICE ELIASsPEoTER, on BROOKLYN, NEW YORK, AssIeNoR F ONE-HALE To BILT-RITE BABYCARRIAGE oo., oF BROOKLYN, N Ew YORK, A FIRM ooivirosnn or MYER s. *cyHARRISON AND ELIAS sPEcTER, ANB ONE-HALF 'roycoLLrER-KEYWORTII co., or

GARDNER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS `LOCK FORBABY-CARRIAGE BACKS Application ined June *1, 1927. serial No. 195,839.

This invention relates to an improvement in a lock for a baby carriageback and the novelty resides in the adaptation and arrangement of partsas will be more fully hereinat'ter pointed out.

There are several types of locks in use for the backs of baby carriages,most of which rlock the back in the closed or open position but do so ina manner which does not insure any rigidity.

My device is adapted to lock the back of a'baby. carriage only in theclosed position but does so in a wayk which absolutely insures therigidity of 'said backin the locked position while permitting the backto vary in position when tilted back in the unlocked position.

It combines an effectiveness in locking in i the closedy position whichhas heretofore not been attained and is also ot' a simple andinexpensive construction peculiarly adapted to the problem to be solved.

Referring to the drawings Figure 1 is a y vertical sectional view of aportion of a baby carriage frame and back hinged thereto showinginycomplete devicey in lockedrrposition, portions being broken away forconvenience in illustration.

Figure 2 is the same yas Figure 1 but show- 4ingmy device in theunlocked position.

t FigureV 3 'is a bottom plan view of the edge of they back, a portionbeing broken away for convenience in illustration. y

- Figure 4 is a perspective of the locking plate and Figure 5 is aperspective of the reenforcing plate. y

In the drawings 6 is a locking plate adapted to be secured at 7 in theusual well known manner to a baby carriage trame 8 and it has a slot 9with two downturned guide plate members 10 bordering one end oit' theslot 9 and the opposite end o'll the slot 9 terminating in a downturnedlip 11 constituting a part of the plate 6. A reenforcing plate 12 isrigidly secured in the usual well known manner at 13 to the base of ababycarriage back 14 so that the lower end of said plate 12 extendsslightly below the lower end of the back 14 andsaid back 14 is hinged at15 to the traine 8 in the usual well known manner. The trame 8 has a cutout portion 16 adapted to receive the projecting portions of the lockingmechanism.

A locking bar 17 is mounted through the back 14 so that it will slidereadily therethrough and in a Cut out portion 1S of said .Y

by means ot' cotter pin 22 which passes through said locking bar 17. Thelower end of the locking bar 17 terminates in a i'lattened portion 23adapted to pass through the slot 9 of the locking plate 6 andcylindrical pin 24 is rigidly secured through said flattened portion 23and is adapted to hold the lower end of said locking bar 17 in theengaged position in said slot 9. On the upper end of the locking bar 17is threaded in the usual well known manner a suitable handle 25.

In operating my device the locking bar which is under normal upwardpressure due to the spring 19 pressing against the washer 21 causes acontinuous normal pressure of the pinQs. on ythe underside of the twodownturned guide plates 10 in the unlocked position as indicated inFigure 2. As the back 14 is restored to the closed position by pushingthe same on the outer side thereby closingA hinges 15r the pin 24 willride down on vthe downturned guide plates 1() until being under thespring pressure 19 the bar 17 is pulled by said spring 19 upwardly asthe pin 24.- passes off of the inside ends of the guide plates 10whereby saidpin 9A goes to the full locked position between the ends ofthe guide plates 10and the downturned lip 11 thereby holding ythelocking bar 17 rigidly in a locked position the downturned lip 11 sothat the back 14 may be pulled backward on the hinges 15 and the`iattended portion 23 of the locking bar 17 will pass through the slot 9and as the operator releases the pressure on the handle 25 the pin 24will contact with the underside of the downturned guide plates 1Qwhereby the bach 14 will be opened to the position as sli-own in Figure2.

It is apparentV that the back 14 may have considerable play as to itsposition when unlocked due to the varyingvposition which may be taken bythe pin 24 on the underside or' the downturned guide plates 1,0V andsuch variation in the position ot' the back 14 is mostdesirable in theuse of av baby carriage and in tact this results in the back 14 assumingthe particular position which may best accommodate the child in the babycarriage as seid child presses against the bach 14 when it is in itsunlocked position.

It will apparent that many variations may be made in the actualstructure of my device without departing from the spiritl and intent ofthe same.

I claim:

l. In a baby carriage back lockr the com bination oi a back, a lockingbar mounted through said bach under constant upward spring tension, across iframe, a locking plate mounted rigidly in said cross trame havinga slot with two downturned guide plates bordering one end olf said slot,a downturned lip terminating the opposite end of said slot, the lowerend or' said locking bar passing through said slot and a cross pinsecuring itin said slot7 and a reenforcing plate rigidly secured to theinside lower edge opt the back so as to project slightly therefrom andbind against the locking plate.

2. ln a baby carriage bach lock the coinbination of a back, a lockingbar mounted through said back under constant upward spring tension, across traine, a locking plate mounted rigidly in said cross trame havinga slot with two downturned guide plates bordering onevend ot said slot,a downturned lip terminating the opposite end oi said slot, the lowerend oit said locking bar movin said slot and limited by a cross pin engin locked position between said doi 'ui-ned guide plates and lip andsaid crossr pin rolling on said guide plates in the unlocked position7and a reentorcing plate rigidly secured to the inside lower edge of ,theback so as to project slightly therefrom and bind against the lookingplate` 3. YIn a lock tor a hinged member. the coinbination oit a hingedmember, a locking bar mounted through said hinged member under constantupward spring tension, a cross trame a lined member, a locking platemounted rigidly in said cross frame on which the hinged member ismounted, a slot in said plate with two downturned guide plates borderingone end ot said slot, a downturned lip terminating the opposite end ofsaid slot, the lower end of said locking bar passing through said slotand a cross pin securing it against removal from said slot and areenforcing plate rigidly secured to the inside lower edge ot the hingedmember so as to project slightly therefrom and bind against the lockingplate.

4. In a loch for a hinged member the oombination oi a hinged member,alloc/king bar mounted through said hinged member under constant upwardspring tension, a. cross frame in a fixed member, a locking platemounted rigidly in said cross frame on which the hinged member ismounted, a slot in said plate with two downturned guide plates borderingone end of said slot, a downturned lip terminating the opposite end otsaid slot, the lower end of said locking bar pas ing through said slotand a Cross pin securing it against/removal trom said slot, the lowerend ot said locking bar moving in said lslot and limited by said erossvpin engaging in locked position between'said downturned guide plates andlip and said cross pin rolling on said guide platesV in the unlockedposition. and a reent'orcingplate rigidly secured to the inside loweredge ot the hinged member so a. to project slightly therefrom and bindagainst the locking plate. i

5. In ababy carriage having a hinged back, a locking bar under constantdownward pressure mounted therein and passing through a locking plateat` its lower end and having a cross pin near said lower end. saidlocking plate comprising a central slot with two downturned guide ilatesbordering one end of said slot and a downturned lipr terminating theopposite end of said slot.

5. In a baby carriage having a hinged back,

a locking bar under constant downward pressure mounted therein andpassing through a locking plate at its lower end and having a cross pinnearV said lower end, said looking plate composed of a central slot withtwo downturned guide plates bordering said slot and a downturned lip atone end ot` the slot adjacent the open downturned ends of said guideplates. i

In testimony whereof I aliix myl signature.

ELIAS SPEGTER.

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